Jambs ingram



nii-2n faire @anni faire 'IMPROVEMENT IN HOISTING MACHINES FOR GBLLARS.

tite tigetnle aferra it in 115252, ettert Etaient mit mating putt nftige same.

T0 ALL WHOM IT MAY CONCERN:

Be it known that'I, JAMES INGRAM, of the city and State of New York,'have invented, made, and applied to use a certain new and usefulImprovement in Hoisting Machines for Cellars; and I do herebyr declarethe following to be a full, clear, and exact description of the saidinvention, reference being had to the annexed drawing, making part ofthis specification, wherein- Figure 1 is an elevation of my saidhoisting machine; and

Figure 2 is ai vertical section of the same at right angles to iig. l,

Similar marks of reference denote the same parts.

Hoisting machines have heretofore been made' for the cellars of storesand warehouses, but they are expensive and notcadapted to use indwellings by servants, and difficulty is often experienced in carryingupashes out of cellars and in taking down provisions.

The object of my. invention is to provide for the speedy raising orlowering ci' any article, such as provisions, barrels of ashes, Snc.,from or to the cellars of dwellings, without the 'cumbersome anddangerous mechanism heretofore employed for stores and warehouses, mymechanism being adapted to remain stationary at any poi-nt to which thearticle may be raised or lowered without the use of pawls, levers, orany friction clamps heretofore employed.-

The nature of my said invention consists in a pair oi' screws combinedwith a sustaining frame, and-actuating gearing arranged so as to beactuated by a crank-handle and raise or lower a platform, the wholebeing fitted in such a mannerthat it is adaptedito use in dwellings bythe most inexperienced hands. Y

In the drawing; a is a frame connecting with the` upper ends of theguide-bars Z1 b, which, at the bottom end, a re formed as or attached tothe legs c c, that are fastened into a agstone or other support at thebottom of a.

shallow pit below the level of the cellar` floor fZ. e c arescrew-shafts sustained by steps at the top and bottom,V

said screws being parallel to the guide-bars b b, and having at theirlower ends bevel-gears, f, taking similar gears, g, upon the cross-shaftL, that is driven lby mitre or bevel gears upon the shaft z', that isprovided with a crank or lllandle, 7c, for turning it with. Z is aplatform guided by thc bars 6 b, and having nuts taking the screws e Itwill now be evident that by rotating the handle ic the platform l can beraised or lowered together with any article placed upon it, and that itwill remain in anyposition at which it may be placed; and when loweredentirely down, said platform comes level with the cellar door, or nearlyso, the gearing and shaft being in the pit below it. The ends of theplatform l, that set against the sides of the. bars b, may bemadesuliici'ently wide to prevent the platform tipping or causing thenuts to bind or bending the screws in consequence of Vthe weights beingplaced upon one side or edge of thc platform l; thus said bars b b guidethe platform, prevent the screws bending, and connect the top and bottombearings for said screws.

What I claim, and desire to secure by Letters Patent, is

The arrangement of the shaft 7L, gears and handle for rotating thescrews e e, in combination with the guide-bars b b and platform Z, asset f'rth, to form a hoisting machine for cellars or buildings, asspecified.

In witness whereof I have hereunto set my signature this twenty-firstday of March, 1866i JAMES INGRAM.

Witnesses:

GEO. D. WALKER, CnAs. H. Smrn.

